渐缩管,converging tube
1)converging tube渐缩管
1.By use of the FLUENT program with some modifications the coal-water slurry is simulated numerically on its converging tube flows,the predicted pressure was compared with the experimental results and correctness of the calculated is proved.运用FLUENT软件提供的非牛顿流体模块对水煤浆流经渐缩管进行模拟计算,比较计算压差和实验压差,证明计算模型的正确性。
英文短句/例句

1.Transitioning or reducing duct. Type of transition can be specified.过渡或渐缩管道。可指定过渡类型。
2.Offset transitioning or reducing duct. Type of transition can be specified.偏移过渡或渐缩管道。可指定过渡类型。
3.Study on the approximate deployment theory of the reducible elbow pipe in the sheet metal process钣金工艺中渐缩管弯头的近似展开理论研究
4.The business has been wound down to a size which becomes manageable.生意规模逐渐缩小到容易管理的规模。
5.Simulation of Particle Deposition in Gradually Reduce Segment of Air-conditioning Duct粒子在空调系统风管渐缩段内沉积的数值模拟
6.Dwindle away/down(逐渐)减少,缩小
7.Asymptotic solution for unsteady flow in expanding or contracting channels with large suction Reynolds大吸附雷诺数下胀-缩壁面管道非稳态流动渐近求解
8.Dwindle to(逐渐)减少到,缩小到
9.It said Japan's economy had“ fully recovered”, but warned that in spite of vigorous growth, deflation was only waning gradually.它表示,日本经济已经“完全复苏”,但同时警告称,尽管增长强劲,但通缩状况只是在逐渐缓解。
10."It's none of your concern."鸿渐道:“不用你管。”
11.The area devoted to fish ponds has gradually declined with the increasing urbanisation of the New Territories.随着新界地区日渐都市化,鱼塘面积逐渐缩减。
12.(cause sth to)stop functioning gradually or decline in size or number(使某事物)逐渐失去作用,衰退,衰减,萎缩
13."Starting at puberty, it shrinks slowly. It has no lymphatic vessels draining into it and does not filter lymph; instead, stem cells in its outer cortex develop into different kinds of T cells)."从青春期开始,胸腺体积逐渐缩
14.CAD for the Evolve Drawing of Two-elbow with Positive Cone正圆锥两节渐缩径弯头展开图cad
15.Gradually, these strings of ragged people shortened and frayed away;几个褴褛的长串逐渐缩短,终于消失。
16.Adiabatic Pulse Compression in Dispersion Decreasing Fibers色散渐减光纤中的绝热脉冲压缩研究
17.The Research of a Progressive 3D Geometry Compression Algorithm;一种渐进式三维几何压缩算法的研究
18.The JPEG-Based Photographic Compressing and Coding Method of Progression and Hierarchy;基于JPEG的分层渐进图像压缩编码方法
相关短句/例句

reducing pipe渐缩管
1.The results show that the influence of reducing pipe convergent angle and transitional radius on flow rate.用三维CAD软件SolidWorks插件COSMOSFloWorks对渐缩管流场进行有限元分析和数值计算,得出了渐缩管收敛角、过渡圆弧半径对其流量的影响。
3)gradually reducing pipeline渐缩管道
4)Convergent short pipe渐缩短管
5)bottleneck pipe渐缩端管
6)Converging-diverging riser渐缩渐扩提升管
延伸阅读

燃料混合管压形缩管模陕西科技大学(陕西咸阳 712081) 刘俊生 周明贵 张喜涛[摘要] 介绍了一种在机械压力机上实现较长尺寸缩管工件的成形模结构。关键词 闭合高度 缩管 脱模1 引言  管材的缩管是常见的成形工艺,常用3种方法:1在缩管旋转机上进行;2在车床上旋压缩口,滚压加工;3用模具在压力机上进行。具体使用哪种方法,视工件要求而定。针对图1所示零件,采用压力机成形工艺比较合适。 根据零件尺寸,材料及计算结果,若在螺旋压力机或液压机上成形,由于工件成形所需压力很小,不能充分利用设备功率,且生产效率较低。故而选用机械压力机成形,模具设计中应重点解决由于工件缩管长度较长而引起的脱模困难,同时又要兼顾模具的闭合高度(在成形很小的情况下,模具闭合高度成为选用机床的主要因素)。2 模具结构 模具结构如图2所示。上内凹模2直接装在模柄上,夹持于滑块中,利用滑块中的打杆槽,装有上拉料黠构,上拉料结构由打料杆14,拉杆13,拉板12,螺栓8,顶杆10组成。下模板固定于工作台面,顶板9位于台面漏料孔中。其特点是:(1)利用冲床,滑块在缩门成形工序完成后拉动打料杆14,使与之连成一体顶杆10向上抬起,解决了由于工件缩口长度较长而引起的脱模困难。(2)顶板9置于工作台漏料孔中,即有效利用机床闭合高度,又减少于模具体积。3 工作过程 冲床滑块上升至上死点时,穿在滑块上的打料杆14带动上拉料组件以至最高点。放管材于定位板4的定位孔中。滑块下行,定位销3导正管材上端进入上凹模2定位孔中后,滑块施轴向力于管材端面.通过模芯11进行缩口,最后通过定位板4与上内凹模进行凸台压形,模芯11和上凹模2材料选用W18Cr4v,热处理硬度61—63HRC。同时,上拉料组件也随滑块一起下降之下死点,压形,缩口完成后,随着滑块一起上升的上拉料组件中的顶杆10抬起工件,取出工件。4 效果  该模具装于400kN偏心冲床(闭合高度300mm,工作台孔直径∮200mm)上,经过近十万件产品的生产,模具基本完好,满足了生产的要求。